Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A detachable liquid crystal display device, comprising: a double-sided liquid crystal module including a light guide plate, first optical sheets provided on a front surface of the light guide plate, second optical sheets provided on a rear surface of the light guide plate, a first liquid crystal panel provided on the first optical sheets, and a second liquid crystal panel provided on the second optical sheets; a lamp provided adjacent to a side portion of the light guide plate; and a cradle including an interface converter for supplying image data and electric power to the double-sided liquid crystal module, wherein the light guide plate includes a plurality of micro patterns dispersing a light from the lamp toward the first and second liquid crystal panels, and wherein the plurality of micro patterns are disposed inside the light guide plate and spaced apart from each of the front and rear surfaces.
A detachable dual-screen LCD device has a double-sided LCD module, a light source (lamp), and a cradle. The LCD module displays images on both front and rear panels. It uses a light guide plate with internal micro-patterns to evenly spread light from the lamp across both LCD panels. These micro-patterns are embedded within the light guide plate, away from its surfaces, ensuring even illumination. The cradle provides power and image data to the LCD module using an interface converter.
2. The device of claim 1 , wherein the double-sided liquid crystal module further includes an interface for receiving image data and image control signals, a power receiver for receiving the electric power, and a timing controller for supplying the image data to the first and second liquid crystal panels in accordance with the image control signals.
A double-sided liquid crystal display device includes a double-sided liquid crystal module with first and second liquid crystal panels arranged back-to-back. The module further includes an interface for receiving image data and image control signals, a power receiver for supplying electric power, and a timing controller. The timing controller processes the received image data and control signals to drive the first and second liquid crystal panels independently, allowing simultaneous display of different or synchronized content on each side. This configuration enables dual-sided viewing without requiring separate display units, reducing space and power consumption while maintaining high-quality image output. The device is particularly useful in applications where space is limited, such as digital signage, portable displays, or interactive kiosks, where displaying different content on each side enhances user experience or information delivery. The timing controller ensures precise synchronization of image data distribution to both panels, optimizing performance and reducing latency. The power receiver efficiently distributes power to the module components, ensuring stable operation. The interface allows seamless integration with external devices, enabling dynamic content updates and control. This design improves functionality while maintaining a compact form factor.
3. The device of claim 2 , wherein the cradle further includes a connector for receiving image data from external equipments, and wherein the interface converter applies the image data to the interface.
The dual-screen LCD device described in the previous claims includes a cradle with a connector for receiving image data from external sources. An interface converter within the cradle takes this external image data and adapts it for the LCD module's interface, which supplies image data and image control signals to a timing controller for the dual LCD panels. This setup allows the dual-screen LCD to display content from external devices.
4. The device of claim 2 , wherein the cradle has an L-shaped configuration, and consists of a bottom portion and a side portion, and wherein the bottom portion includes a lock and the side portion includes an indentation having a same width as the double-sided liquid crystal module.
The cradle for the dual-screen LCD has an L-shape, with a bottom and side portion. The bottom has a lock to secure the LCD module, while the side portion features an indentation, with the indentation's width matching the thickness of the double-sided LCD module. This physical design ensures the LCD module fits snugly and is held in place by the cradle.
5. The device of claim 4 , wherein the double-sided liquid crystal module is accommodated in the indentation and supported by the bottom portion and is locked in position by the lock when the double-sided liquid crystal module is coupled with the cradle.
Continuing from the L-shaped cradle design, the dual-screen LCD module fits into the indentation and rests on the bottom portion. When the LCD module is fully inserted into the cradle, the lock on the bottom secures it, preventing accidental dislodging. This physical interlock ensures stable operation while the device is in use.
6. The device of claim 4 , wherein the double-sided liquid crystal module is adapted to slide out of the cradle along the bottom portion when the double-sided liquid crystal module is detached from the cradle.
The dual-screen LCD module is designed to slide out of the cradle along the bottom portion when detached. Following the L-shaped cradle described earlier, the module slides along the bottom, allowing easy removal without complex mechanisms or tools, thus facilitating detachment.
7. The device of claim 4 , wherein the interface of the double-sided liquid crystal module is disposed on a side of the double-sided liquid crystal module, and wherein the interface converter is disposed in the side portion of the cradle.
The dual-screen LCD module's interface (for data and power) is located on its side. The L-shaped cradle described previously has the interface converter in its side portion. When the LCD module is inserted, these side-mounted components align, providing a direct connection for transmitting data and power.
8. The device of claim 2 , wherein the interface and the interface converter contact to each other and adopt an LVDS (Low Voltage Differential Signaling) transmission system.
The interface on the dual-screen LCD module and the interface converter in the cradle make direct contact for data transfer. They use LVDS (Low Voltage Differential Signaling) for transmitting data which provides high-speed, low-noise communication between the module and the cradle, ensuring image data is transferred reliably.
9. The device of claim 2 , wherein the connector includes a DVI (Digital Video Interface) input, an S-video input, a component input, a composite video input, and a USB (Universal Serial Bus) input.
The connector on the cradle for the dual-screen LCD accepts multiple types of video inputs, including DVI (Digital Video Interface), S-video, component video, composite video, and USB (Universal Serial Bus). This variety allows the dual-screen display to be connected to various external devices, enhancing its versatility. The LCD module described previously provides image data and control signals to a timing controller for the dual LCD panels.
10. The device of claim 2 , wherein the double-sided liquid crystal module further includes a re-chargeable battery that is connected to the power receiver.
The dual-screen LCD module has a rechargeable battery connected to the power receiver. The power receiver gets power from the cradle as described previously, and this battery allows the LCD module to operate independently of the cradle for a limited time, enabling portable use.
11. The device of claim 2 , wherein the cradle further includes a power connector for transmitting the electric power to the power receiver.
The cradle includes a power connector that sends electricity to the LCD module's power receiver described previously. This ensures the LCD module receives the necessary power to operate, either to directly power the device or to charge its battery.
12. The device of claim 1 , wherein the cradle further includes an inverter for supplying alternating current to the lamp.
The cradle has an inverter for supplying alternating current (AC) to the lamp. The double-sided LCD module from the previous claims uses a light guide plate, front/rear optical sheets and two LCD panels and needs the lamp to illuminate the LCD panels. The inverter converts the cradle's DC power to the AC voltage needed by the lamp.
13. The device of claim 1 , wherein the lamp is provided in the cradle.
The lamp that provides light for the dual-screen LCD module is positioned inside the cradle. The module features a light guide plate with micro-patterns as described previously. The cradle therefore ensures that the lamp is properly positioned to illuminate this light guide plate.
14. The device of claim 1 , wherein the light guide plate includes a plurality of first dummy patterns on the front surface thereof, and a plurality of second dummy patterns on the rear surface thereof.
The light guide plate has dummy patterns on both its front and rear surfaces. These dummy patterns further enhance the light distribution characteristics of the plate, working alongside the internal micro-patterns described previously to ensure uniform brightness across both LCD panels.
15. The device of claim 1 , wherein the plurality of micro patterns have one of a circular shape, an oval shape, a polygonal shape and a stripy shape.
The micro patterns inside the light guide plate can be circular, oval, polygonal, or striped. These shapes scatter light in different ways, and the optimal shape is chosen to maximize light distribution and uniformity across the front and rear LCD panels.
16. The device of claim 4 , wherein the side portion extend upwardly from an end portion of the bottom portion and the lock is disposed at an opposite end portion of the bottom portion.
The side portion of the L-shaped cradle extends upwards from one end of the bottom portion. The lock is located at the opposite end of the bottom portion. Thus the dual-screen LCD module rests on the bottom and is secured at opposite ends, using the previously described indentation on the side.
17. The device of claim 4 , wherein the indentation contacts a side surface of the double-sided liquid crystal module and the lock contacts an opposite side surface of the double-sided liquid crystal module when the double-sided liquid crystal module is coupled with the cradle.
When the dual-screen LCD module is inserted into the L-shaped cradle, the indentation on the side portion contacts one side of the LCD module, while the lock on the bottom contacts the opposite side. This opposing contact creates a secure fit, holding the LCD module firmly in place within the cradle.
18. The device of claim 1 , wherein the plurality of micro patterns disperse the light from the lamp toward the front and rear surfaces.
The micro-patterns inside the light guide plate are specifically designed to scatter light from the lamp towards both the front and rear surfaces of the plate. This ensures both LCD panels receive adequate illumination.
19. The device of claim 1 , wherein the cradle has an L-shaped configuration, and consists of a bottom portion and a side portion, wherein the bottom portion includes a lock and the side portion includes an indentation having a width that is the same as a thickness of the double-sided liquid crystal module, wherein the double-sided liquid crystal module includes front and rear surfaces each displaying an image and first to third side surfaces connecting the front and rear surfaces, wherein the second side surface is opposite to the first side surface, and the third side surface connects the first and second side surfaces, and wherein the side portion, the lock and the bottom portion contact the first, second and third side surfaces, respectively.
The cradle is L-shaped, with a bottom and a side. The bottom has a lock, and the side has an indentation matching the double-sided LCD module's thickness. The double-sided LCD has front and rear image-displaying surfaces, connected by first, second (opposite the first), and third side surfaces. The side portion, lock, and bottom portion of the cradle contact the first, second, and third side surfaces of the LCD module, respectively, to secure it.
Unknown
October 7, 2014
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